diff options
author | Stefan Reinauer <stepan@coresystems.de> | 2010-02-08 12:20:50 +0000 |
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committer | Stefan Reinauer <stepan@openbios.org> | 2010-02-08 12:20:50 +0000 |
commit | 38f147ed3d9fdd6bfb23d7226f6fdd3fc5db53d0 (patch) | |
tree | ecb680abac7c73798a4abf5f5733c6ad3e179bb4 /src/mainboard/amd/rumba/romstage.c | |
parent | d51eddbb6611965165ad72eb3fb04377a51ab64a (diff) |
janitor task: unify and cleanup naming.
cache_as_ram_auto.c and auto.c are both called "romstage.c" now.
Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Patrick Georgi <patrick.georgi@coresystems.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5092 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat (limited to 'src/mainboard/amd/rumba/romstage.c')
-rw-r--r-- | src/mainboard/amd/rumba/romstage.c | 148 |
1 files changed, 148 insertions, 0 deletions
diff --git a/src/mainboard/amd/rumba/romstage.c b/src/mainboard/amd/rumba/romstage.c new file mode 100644 index 0000000000..1dce42548e --- /dev/null +++ b/src/mainboard/amd/rumba/romstage.c @@ -0,0 +1,148 @@ +#define ASSEMBLY 1 +#define __PRE_RAM__ + +#include <stdint.h> +#include <device/pci_def.h> +#include <arch/io.h> +#include <device/pnp_def.h> +#include <arch/romcc_io.h> +#include <arch/hlt.h> +#include "pc80/serial.c" +#include "arch/i386/lib/console.c" +#include "lib/ramtest.c" +#include "superio/winbond/w83627hf/w83627hf_early_serial.c" +#include "cpu/x86/bist.h" +#include "cpu/x86/msr.h" +#include <cpu/amd/gx2def.h> + +#define SERIAL_DEV PNP_DEV(0x2e, W83627HF_SP1) + +#include "southbridge/amd/cs5536/cs5536_early_smbus.c" +#include "southbridge/amd/cs5536/cs5536_early_setup.c" + +static inline int spd_read_byte(unsigned device, unsigned address) +{ + return smbus_read_byte(device, address); +} + +#include "northbridge/amd/gx2/raminit.h" + +static inline unsigned int fls(unsigned int x) +{ + int r; + + __asm__("bsfl %1,%0\n\t" + "jnz 1f\n\t" + "movl $32,%0\n" + "1:" : "=r" (r) : "g" (x)); + return r; +} + +static void sdram_set_spd_registers(const struct mem_controller *ctrl) +{ + /* Total size of DIMM = 2^row address (byte 3) * 2^col address (byte 4) * + * component Banks (byte 17) * module banks, side (byte 5) * + * width in bits (byte 6,7) + * = Density per side (byte 31) * number of sides (byte 5) */ + /* 1. Initialize GLMC registers base on SPD values, do one DIMM for now */ + msr_t msr; + unsigned char module_banks, val; + + msr = rdmsr(MC_CF07_DATA); + + /* get module banks (sides) per dimm, SPD byte 5 */ + module_banks = spd_read_byte(0xA0, 5); + if (module_banks < 1 || module_banks > 2) + print_err("Module banks per dimm\r\n"); + module_banks >>= 1; + msr.hi &= ~(1 << CF07_UPPER_D0_MB_SHIFT); + msr.hi |= (module_banks << CF07_UPPER_D0_MB_SHIFT); + + /* get component banks per module bank, SPD byte 17 */ + val = spd_read_byte(0xA0, 17); + if (val < 2 || val > 4) + print_err("Component banks per module bank\r\n"); + val >>= 2; + msr.hi &= ~(0x1 << CF07_UPPER_D0_CB_SHIFT); + msr.hi |= (val << CF07_UPPER_D0_CB_SHIFT); + + /* get the module bank density, SPD byte 31 */ + val = spd_read_byte(0xA0, 31); + val = fls(val); + val <<= module_banks; + msr.hi &= ~(0xf << CF07_UPPER_D0_SZ_SHIFT); + msr.hi |= (val << CF07_UPPER_D0_SZ_SHIFT); + + /* page size = 2^col address */ + val = spd_read_byte(0xA0, 4); + val -= 7; + msr.hi &= ~(0x7 << CF07_UPPER_D0_PSZ_SHIFT); + msr.hi |= (val << CF07_UPPER_D0_PSZ_SHIFT); + + print_debug("computed msr.hi "); + print_debug_hex32(msr.hi); + print_debug("\r\n"); + + msr.lo = 0x00003000; + wrmsr(MC_CF07_DATA, msr); + + msr = rdmsr(0x20000019); + msr.hi = 0x18000108; + msr.lo = 0x696332a3; + wrmsr(0x20000019, msr); + +} + +#include "northbridge/amd/gx2/raminit.c" +#include "lib/generic_sdram.c" + +#define PLLMSRhi 0x00001490 +#define PLLMSRlo 0x02000030 +#define PLLMSRlo1 ((0xde << 16) | (1 << 26) | (1 << 24)) +#define PLLMSRlo2 ((1<<14) |(1<<13) | (1<<0)) +#include "northbridge/amd/gx2/pll_reset.c" +#include "cpu/amd/model_gx2/cpureginit.c" +#include "cpu/amd/model_gx2/syspreinit.c" +static void msr_init(void) +{ + /* total physical memory */ + __builtin_wrmsr(0x1808, 0x10f3bf00, 0x22fffc02); + + /* traditional memory 0kB-512kB, 512kB-1MB */ + __builtin_wrmsr(0x10000020, 0xfff80, 0x20000000); + __builtin_wrmsr(0x10000021, 0x80fffe0, 0x20000000); + + __builtin_wrmsr(0x40000020, 0xfff80, 0x20000000); + __builtin_wrmsr(0x40000021, 0x80fffe0, 0x20000000); + + /* put code in northbridge[init].c here */ +} + + +static void main(unsigned long bist) +{ + static const struct mem_controller memctrl [] = { + {.channel0 = {(0xa<<3)|0, (0xa<<3)|1}} + }; + + SystemPreInit(); + + + w83627hf_enable_serial(SERIAL_DEV, CONFIG_TTYS0_BASE); + uart_init(); + console_init(); + + cs5536_early_setup(); + + pll_reset(); + + cpuRegInit(); + print_err("done cpuRegInit\n"); + + sdram_initialize(1, memctrl); + + msr_init(); + + /* Check all of memory */ + //ram_check(0x00000000, 640*1024); +} |